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Experience the best of the line: the Williams Optics FLT158 Triplet APO f/7
Refractor with 3.5" Focuser. We're not talking any refractor; we're talking
superb quality with amazing clarity and color correction.
Designed by a leading Russian optical designer, this telescope boasts
EXCEPTIONAL performance. With a super generous 158mm aperture and f/7 focal
ratio, the William Optics FLT158 APO was meant for astrophotography.
Optically unbeatable
Features a top-quality triplet air-spaced objective with FPL-53 glass;
customed designed and created by a leading Russian optical designer.
This scope is extremely sharp and has a great color correction. It is ideal
for astrophotography.
Crayford Focuser
Extra-smooth 3.5" Crayford focuser: a treat to use during astrophotography.
No more image shifting!
360 deg. rotatable.
Extra-heavy duty.
Large aluminum knobs.
Patented Design
Stainless steel reinforcement inserts on both sides and on the back to allow
heavy loading without problems.
Ball bearings on both sides of the focuser will make your focusing
experience the best you ever experienced with a scope!
Graduated scale for precise camera alignment.
DO-all Telescope
Despite of its 158mm objective, the scope is still very compact and solid.
The focuser is so strong there is no need for a locking screw.
Two-speed microfocuser STANDARD on all units.
Simply Beautiful Finish
Solid CNC-machined mounting rings.
Pure William Optics quality fit and finish: powder-painted white CNC-machined
aluminum tube, golden finish, retractable dewshield, anodized 360 deg.
rotatatable crayford focuser, dewshield cap.
Highly precise CNC machined lens cell.
Total Quality Package
2" & 1.25" adapters included.
All with brass anti-marring compression rings.
168mm mounting rings included in the price.
High Quality Aluminum Case
Stow away your telescope in the practical and safe aluminum case.
Though you will never need it, you have a 2-year warranty from WO, and the
certainty that we will be there to assist you even beyond that, if you need!
| Aperture
|
158mm |
| Focal Ratio
|
F/7 |
| Focal Length
|
1121mm |
| Objective Type
|
Air-spaced Triplet, Apochromatic objective |
| Lens Shade |
Retractable |
| Focuser |
3.5" Crayford Focuser, rotatable design
Intergrated 1:10 fine focus
115 mm Focuser Travel Length |
| 1.25" Adapter
|
Provided |
| Type of Mount |
Mounting Rings |
| Tube Length
|
990mm (Fully Retracted)
1180mm (Fully Extended) |
| Tube Weight
|
15 kg |
|
1994年成立 
